Tomografía sísmica del Volcán Barú y alrededores, provincia de Chiriquí, sur occidente de Panamá

Daphne Sagel; Eduardo Camacho Astigarrabía; Inmaculada Serrano

doi:10.48204/j.tecno.v27n1.a6648

Enviado diciembre 30, 2024

Publicado 2025-01-03

Artículos

Vol. 27 Núm. 1 (2025): Tecnociencia

Tomografía sísmica del Volcán Barú y alrededores, provincia de Chiriquí, sur occidente de Panamá

Daphne Sagel ⁺⁻
Eduardo Camacho Astigarrabía⁺⁻
Inmaculada Serrano ⁺⁻

DOI https://doi.org/10.48204/j.tecno.v27n1.a6648

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DOI: 10.48204/j.tecno.v27n1.a6648

Publicado: 2025-01-03

Cómo citar

Sagel , D., Camacho Astigarrabía, E. y Serrano , I. (2025) «Tomografía sísmica del Volcán Barú y alrededores, provincia de Chiriquí, sur occidente de Panamá», Tecnociencia, 27(1), pp. 174–195. doi: 10.48204/j.tecno.v27n1.a6648.

Derechos de autor 2024 Tecnociencia

Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-CompartirIgual 4.0.

Resumen

Se realizó una tomografía sísmica del volcán Barú y alrededores, en el suroccidente de Panamá. El volcán Barú es uno de los últimos volcanes en el extremo sur de Centroamérica y los estudios realizados en esta investigación brindan un escenario muy importante sobre la estructura interna del mismo. Mediante la tomografía sísmica de velocidad de las ondas P, se obtuvieron imágenes que muestran heterogeneidades en la estructura interna del volcán Barú, las cuales se deben a la compleja evolución, subducción y tectónica de la zona. El resultado más importante es la anomalía negativa al noroeste del volcán Barú y sureste de cerro Tizingal que se observa en todas las capas y que sugiere una posible cámara magmática. Este estudio brinda una panorámica sobre las posibilidades de erupciones futuras, lo que nos permitirá adoptar medidas de mitigación más eficaces en las zonas circundantes al volcán Barú donde existe una población de alrededor de 20.000 habitantes.

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[1] Adamek, S., Frohlich, C., & Pennington, W.D. (1988). Seismicity of the Caribbean boundary: Constraints on microplate tectonics of the Panama region, J. Geophys. Res., 93, 2053-2075.

[2] Andrews, D.J. (1989). Mechanics of Fault Junctions, J. Geophys. Res., 94, 9389-9397.

[3] Arroyo, I., & Linkimer, L. (2021). Geometría de la zona sismogénica interplaca en el sureste de Costa Rica a la luz de la secuencia sísmica de Golfito del 2018. Geofísica Internacional 60, 51-75

[4] Bacon, C.D., Mora, A., Wagner, W.L. & Jaramillo, C.A. (2013). Testing geological models of evolution of the Isthmus of Panama in a phylogenetic framework, Botanical Journal of the Linnean Society, 171, 287–300.

[5] Bowin, C., & McKenzie, D., (1976). The relationship between bathymetry and gravity in the Atlantic Ocean., J. Geophys. Res., Solid Earth, 81(11), 1903-1915, https://doi.org/10.1029/JB081i011p01903

[6] Bowland, C., 1984. Seismic stratigraphy and structure of the western Colombian basin (M. A. Tesis), University of Texas at Austin, 195 p.

[7] Camacho, E. (1991). The Puerto Armuelles Earthquake (Southwestern Panama) of July 18, 1934. Rev. Geol. Amér. Central, 13: 1-14.

[8] Camacho, E., (2003). Sismotectónica del extremo norte de la Zona de Fractura de Panamá. Universidad de Panamá, Laboratorio de Geofísica e Hidrogeología.

[9] Camacho Astigarrabia, E., (2009). Sismicidad de las Tierras Altas de Chiriquí. Tecnociencia, 11. 119-130.

[10] Case, J.E., Holcome, T.L., Martin, R.G., 1984. Map of geologic Provinces in the Caribbean Region, Geol. Soc. Am. Memoir. Pág. 162.

[11] Corrigan, H.A., Mann, P., Ingle, J. C., 1990. Forearc response to subduction of the Cocos Ridge. Panamá-Costa Rica, Geol. Soc. Am. Bull. 102, 628-652.

[12] Cowan, H.A. L. Sánchez, E. Camacho, J. Palacios, A. Tapia, D. Irving, D. Esquivel & C. Lindholm. (1996). Seismicity and tectonics of Western Panama from new portable seismic array data, Final Report to the Research Council of Norway, NTNF-NORSAR, Kjeller, Norway. 23pp.

[13] Cowan, H.A., Sánchez, L., Camacho, E., Palacio, J., Tapia, A., Irving, D., Esquivel, D. & Lindholm, C., 1995. Seismicity and Tectonic of western Panama from new portable Seismic array data. Final Report to the Research Council of Norway, NTNF-NORSar. Kjeller, Norway.

[14] DeBoer, J.Z., Defant, M.J., Stewart, R.H., Restrepo, J.F., Clark, L.F., & Ramirez, A.H. (1988). Quaternary calc-alkaline volcanism in western Panama: regional variation and implication for the plate tectonic framework, J. S. Am Earth Sci, 1(3):275–293.

[15] DeBoer, J.Z., Defant, M.J., Stewart, R.H., & Bellon, H. (1991). Evidence for active subduction below western Panama, Geology 19 (1991), pp.649–652.

[16] DeMets, C. (2001). A new estimate for present-day Cocos-Caribbean plate motion: implications for slip along the Central American volcanic arc, Geophys. Res. Lett., 28, 4043–4046. https://doi.org/10.1029/2001GL013518

[17] Denyer, P. (2007). Geología y Geotectónica de América Central y el Caribe. Escuela de geología, Universidad de Costa Rica.

[18] Denyer, P., Montero, W & Alvarado, G., (2003): Atlas tectónico de Costa Rica.- 79 págs. Ed. Univ. Costa Rica, San José.

[19] Díaz Velarde, G. (1999). Consideraciones a la geología regional del Oeste de Panamá. Academia Mexicana de Ingeniería, México, 37 pp.

[20] Duncan, R.A., & Hargraves, R.B. (1984). Plate-tectonic evolution of the Caribbean region in the mantle reference frame. In the Caribbean-South American Plate Boundary and Regional Tectonics, 81-93. Geological Society of America Memoir 162.

[21] Fernández, M., Camacho, E., Molina, E., Marroquín, G. & Strauch, W. (2007). Seismicity and neotectonics. En: Bundschum, J. & Alvarado, G.E. (eds.) Central America: Geology, resources, hazards. London, Taylor & Francis, 323-340.

[22] Fichtner, A., Kennett, B.L.N., Tsai, V.C.,Thurber, C.H., Rodgers, A. J., Tape, C., Rawlinson, N., Borcherdt, R.D., Lebedev, S., Priestley, K., Morency, C., Bozda?, E., Tromp, J., Ritsema, J., Romanowicz, B., Liu, Q., Golos, E., & Lin, F-C. (2024). Seismic Tomography 2024, Bulletin of the Seismological Society of America 2024; 114 (3): 1185–1213. doi: https://doi.org/10.1785/0120230229

[23] Fisher, D, Gardner, T, Sak, P, Sánchez, J, Murphy, K, & Vanucchi, P, (2004). Active thrusting in the inner forearc of an erosive convergent margin, Pacific coast, Costa Rica, Tectonics, 23(5): 13 pp.

[24] Graham, A. (1975). Vegetational paleohistory Studies in Panama and Adyacent Central America/por Alam Graham. En la Botánica y la Historia Natural de Panamá. Pág.163.

[25] Hardy, N. C. (1991). Tectonic evolution of the easternmonst Panama. Basin: Some new data and insights, J. South Am. Earth Sci. 4, 261-269.

[26] Harmon, R.S. (2005). Geological Development of Panama. In: Harmon, R.S. (eds) The Río Chagres, Panama. Water Science and Technology Library, vol 52. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3297-8_4

[27] Havskov, J., & Ottemoller, L. (2000). SEISAN Earthquake Analysis Software. Seismo. Research Letters, 70, 532-534. http://dx.doi.org/10.1785/gssrl.70.5.532

[28] Haskov, J., Vosss, P., & Ottemoller, L. (2020). Seismological Observatory Software: 30 Yr of SEISAN Seismological Research Letters, 91(3): 1846–1852.

[29] https://doi.org/10.1785/0220190313

[30] Heil, D., & Silver, E. (1987). Forearc uplift south of Panama. A result of transform ridge subduction, Geol. Soc. Am. Abstracts Prog. 19, 698.

[31] Heil, D. (1988). Response of and accretionary prism to transform ridge collision, south of Panama. Tesis de Maestría, University of California at Santa Cruz, 156 p.

[32] Heil, D., Silver, E., Mackay, M., & Moore, G. (1986). Effect of obliquely subducting ridge on structural geometry and bathymetry: South Panama, Geol. Soc. Am. Abstr. Programs, 19: 698.

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